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Ke Xu is a seasoned software engineer with extensive experience in backend architecture and engineering leadership. Currently, Ke Xu is part of Meta, focusing on ads machine learning infrastructure since September 2024. Prior roles include Director of Platform Engineering at Carbon Health, where Ke Xu led a team to develop scalable backend solutions, and Technical Lead, emphasizing systems design and data architecture. Ke Xu's experience also includes software engineering roles at Lyft, where contributions involved optimizing ride recommendations, and at Google, focusing on performance optimizations for the Payments Platform. Additional experience spans positions at Twitter, MoPub, and Microsoft, with a foundation in software engineering established at the University of California, Berkeley, where Ke Xu earned a BS in Electrical Engineering and Computer Science.